His attitude . . . . . . . . his work is very negative.

Solution(By Examveda Team)

In this sentence, the preposition that appropriately fits in the blank to convey the intended meaning is "in". The complete sentence would be:

"His attitude in his work is very negative."

This usage of "in" indicates that the negativity is associated with his work or is reflected within his work. It's a common preposition to use when describing someone's attitude or behavior in a specific context, in this case, his work.

The other options do not fit as well in the context of the sentence:

Option A: to would imply a different relationship between attitude and work.
Option C: about and Option D: of are less commonly used in this context.

So, the correct answer is Option B: in.